Someone please help me

Answer:

i have no idea what the answer is

Step-by-step explanation:

Answer:

i cant see anything

Step-by-step explanation:

.

Answer:

Step-by-step explanation:

Answer:

The cost of the hat with 7.5% tax would be $26.87

Step-by-step explanation:

($24.99 * 0.075) = $26.87.

The sum of the first 8 terms of the given geometric sequence is 1953120.

The given sequence seems to be a geometric sequence with the first term a=5 and the common ratio r=5. We can find the sum of the first n terms of a geometric sequence using the formula:

S_n = a(1 - r^n)/(1 - r)

Using this formula, we can find the sum of the first 8 terms as follows:

S_8 = 5(1 - 5^8)/(1 - 5)

= 5(-390624)/(-4)

= 1953120

Therefore, the sum of the first 8 terms of the given geometric sequence is 1953120.

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Given: x[n] = 20cos(4πn + 0.1)

To calculate y[n], we substitute the values of x[n] into the equation:

y[n] = 2x[n+1] + 3x[-n+3]

Step 1: Calculate x[n+1]

For x[n+1], we substitute n+1 into the equation for x[n]:

x[n+1] = 20cos(4π(n+1) + 0.1)

= 20cos(4πn + 4π + 0.1)

= 20cos(4πn + 4.1π)

Step 2: Calculate x[-n+3]

For x[-n+3], we substitute -n+3 into the equation for x[n]:

x[-n+3] = 20cos(4π(-n+3) + 0.1

= 20cos(-4πn + 12π + 0.1)

= 20cos(-4πn + 12.1π)

Step 3: Calculate y[n]

Substitute the values of x[n+1] and x[-n+3] into the equation for y[n]:

y[n] = 2x[n+1] + 3x[-n+3]

= 2(20cos(4πn + 4.1π)) + 3(20cos(-4πn + 12.1π))

= 40cos(4πn + 4.1π) + 60cos(-4πn + 12.1π)

Now, we can plot the output signal y[n] using the calculated values.

Please note that the given discrete signal x[n] seems to be a continuous-time signal represented as a cosine function.

If you have a specific range of n for which you want to calculate and plot the output signal, please provide that information so that I can generate a more accurate plot.

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Evan can play 2 games of mini golf and 9 games of kart track.

Given that Evan's mom gave him 11 tickets and left in game zone for 3 hours,

He can spend 1 ticket on one game, and he spend 10 minutes in kart track and a game of mini golf lasts 45 minutes.

We need to find how many games he played of both the games,

So, let he played x games of kart track and y games of mini golf,

So,

x + y = 11

x = 11 - y.............(i)

10x + 45y = 180...........(ii) [ ∵ 3 hours = 180 minutes]

Use the equation i in ii,

So,

10(11-y) + 45y = 180

110 - 10y + 45y = 180

35y = 70

y = 2

Put y = 2 in equation 1,

x = 11-2

x = 9

Hence he played 2 games of mini golf and 9 games of kart track.

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Step-by-step explanation:

speed = distance/time

time = t = distance/speed

t = 180/b + (400-180)/c = 180/b + 220/c = 20(9/b + 11/c)

The value greater than - 4. 5 is - 4. 35. Option A

Number line is simply the horizontal straight lines where integers are placed in equal intervals.

The numbers in a sequence can be represented in a number line and the line extends indefinitely at both ends.

The parts of a number line are;

With the numbers given, we can see that -4. 35 is a number on the right side of - 4. 5 and thus is greater than it

Hence, the value greater than - 4. 5 is - 4. 35. Option A

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Given:

Of the 50 students in the cafeteria, 7 have red hair.

Total number of students = 750

To find:

The proportion that could be used to predict the number of students who have red hair.

Solution:

Let x represent the number of students who have red hair.

The ratio of student having red hair to the total number of students are

\(Ratio_1=\dfrac{7}{50}\)

\(Ratio_2=\dfrac{x}{750}\)

The number of students having red hair is proportional to the total number of students. So, the above ratios are equal.

\(\dfrac{x}{750}=\dfrac{7}{50}\)

Multiply both sides by 750.

\(\dfrac{x}{750}\times 750=\dfrac{7}{50}\times 750\)

\(x=7\times 15\)

\(x=105\)

Therefore, the required equation is \(\dfrac{x}{750}=\dfrac{7}{50}\) and the number of students who have red hair is 105.

Answer:

11m + 2

Step-by-step explanation:

Combine like-terms.

5m + 6m = 11m

-7 + 9 = 2

Answer:

m= 16

Step-by-step explanation:

first you would rewrite the statement

then you would subtract 5m -6m =M

then you subtract 7 from 9 =16

so your answer is M=16

can I get the brainliest?

B(0) = 0 Inches of depth are present 0 minutes after filling started, or at time = 0; depth = 0.

B(1) denotes the function one minute into the filling process.

B(9) = 11 shows that 11 inches of water are present in the container 9 minutes after the filling started.

7 minutes after the filling process began, the feature displays the water depth in inches.

A.) B(0)=0

B(0) = 0 indicates that the depth in inches at time = 0 and depth = 0 is 0 minutes after filling started.

B.) B(1) (1) B(1) denotes the function one minute into the filling process.

C.B(9)=11

B(9) = 11 shows that 11 inches of water are present in the container 9 minutes after the filling started.

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Answer:

2.8in^2

Step-by-step explanation:

3.2 * 0.875 = 2.8

Hello there!

To find the area of this rectangle, we must multiply the length times the width:

A=\(3\frac{1}{5} *\frac{7}{8}\)

Let's convert the mixed number into an improper fraction:

\(\frac{16}{5} *\frac{7}{8}\)

Do you see what I see?

16 and 8 can be reduced. Divide by 8:

\(\frac{2}{5} *\frac{7}{1}\)

Now multiply:

\(\frac{14}{5} \\\)

Hope it helps you!

#HaveAnAmazingDay

~Just a joyful teen

\(GraceRosalia :)\\****************************************\\Comment:\)

If my answer was helpful, please mark Brainliest! :)

Answer:

-60

Step-by-step explanation:

Og problem: x(2x + 2x - 8y + 16)

Substitution: 3(6 + 6 - 48 + 16)

Solve: 3(12 - 48 + 16)

3(-36 + 16)

3(-20) = -60

Answer: Below

Step-by-step explanation:

24% is basically 0.24. Since we want to find the original price we make the equation:

x * (1 - 0.24) = 665

For x is the original price. Simplify:

x * (0.76) = 665

x = 665/0.76

x = 875

Our answer is 875

Answer:

uhm i think its A

Step-by-step explanation:

sorry if i get it wrong

:):

Answer:ITS A

Step-by-step explanation:

Answer: \(x=5\)

Step-by-step explanation:

Because the \(x\) coordinate of both of the points is 5, the equation is \(x=5\).

Step-by-step explanation:

\(volume = \pi {r}^{2}h\)

\(695 = 3.14 \times {r}^{2} \times 11.5\)

\( {r}^{2} = 19.2\)

\(r = \sqrt{19.2} = 4.3\)

In the case of United States v. Northeastern Pharmaceutical & Chemical Co., the government can seek to recover its costs from various parties involved based on the Resource Conservation and Recovery Act (RCRA) and other statutes.

Firstly, the government can hold NEPACCO liable for the costs of remedial action. As the company responsible for generating the hazardous waste and arranging for its disposal at the farm, NEPACCO can be held accountable for the cleanup costs under RCRA. Even though the company was liquidated and its assets distributed to shareholders, the government can still pursue recovery from the remaining assets or from the shareholders individually.

Secondly, the government can also hold individuals involved, such as Michaels (the founder and major shareholder), Ray (the chemical-plant manager), and Lee (the vice president and shareholder), personally liable for the costs. Their roles in approving and arranging the disposal of hazardous waste may make them individually responsible under environmental laws and regulations. Overall, the government can seek to recover its costs from NEPACCO, as well as from the individuals involved, based on their responsibilities and liabilities under RCRA and other applicable statutes.

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Answer:

No. The correct equation is

y= 1/2 x - 2

Step-by-step explanation:

See picture

Answer: Step 4: (x² + 2xy + y²) - (x² - 2xy + y²) = x² + 2xy + y² - x² + 2xy - y²

Step-by-step explanation:

The solution is : C. Combining like terms

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.

here, we have,

we are given that

Darlene wrote this proof of the identity (x + y)2 - (x - y)2 = 4xy.

we have been asked to find

Which of the following is a justification for Step 3 of her proof?

Step 3 of her proof is

Step 3: (x² + xy + xy + y²) - (x² - xy - xy + y²) = (x² + 2xy + y²) - (x² - 2xy + y²)

As we can observe inside each of the paranthesis only like terms have been added. It mean the required justification is

C. Combining like terms

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First we find the partial derivatives of x and y with respect to t.

\(Then the formula for surface area is given as;$$S=\int_0^{2\pi} 2\pi y\sqrt{\left(\frac{dx}{dt}\right)^2 + \left(\frac{dy}{dt}\right)^2} dt$$Given:$$x=t^5 + y + 5t$$$$y=5x+13t$$\)

\(Differentiating with respect to t gives;$$\frac{dx}{dt}=5t^4+5$$$$\frac{dy}{dt}=5(5t+13)$$$$\frac{dx}{dt}=25t^4+65t+25$$$$\frac{dy}{dt}=5(5t+13)$$$$x(0)=0$$$$y(0)=5(0)+13(0)=0$$\)

\(Therefore$$x=2+cos(2t)$$$$y=5+2sin(2t)$$\)

\(Differentiating with respect to t gives;$$\frac{dx}{dt}=-2sin(2t)$$$$\frac{dy}{dt}=4cos(2t)$$$$\frac{dx}{dt}=4\pi sin(2t)$$$$\frac{dy}{dt}=8\pi cos(2t)$$$$x(0)=2$$$$y(0)=5+2=7$$\)

\(Therefore;$$S=\int_0^{2\pi} 2\pi(5+2sin(2t))\sqrt{(4\pi cos(2t))^2+(8\pi sin(2t))^2}dt$$$$=\int_0^{2\pi} 2\pi(5+2sin(2t))\sqrt{(16\pi^2 cos^2(2t))+(64\pi^2 sin^2(2t))}dt$$$$=\int_0^{2\pi} 2\pi(5+2sin(2t))\sqrt{16\pi^2}dt$$$$=\int_0^{2\pi} 2\pi(5+2sin(2t))4\pi dt$$$$=\int_0^{2\pi} 32\pi^2+16\pi^2sin(2t) dt$$$$=32\pi^2t-\frac{8\pi^2}{cos(2t)}|_0^{2\pi}$$$$=32\pi^3$$\)

\(Hence the area of the surface is $32\pi^3$ square units.The formula for arc length is given as;$$L=\int_a^b \sqrt{\left(\frac{dx}{dt}\right)^2 + \left(\frac{dy}{dt}\right)^2}dt$$Given:$$x=9cos(t)+9tsin(t)$$$$y=9sin(t)-9tcos(t)$$\)

\(Differentiating with respect to t gives;$$\frac{dx}{dt}=-9sin(t)+9tcos(t)+9sin(t)=9tcos(t)$$$$\frac{dy}{dt}=9cos(t)+9tsin(t)+9cos(t)=-9tsin(t)+18cos(t)$$$$\frac{dx}{dt}=9cos(t)$$$$\frac{dy}{dt}=18-9sin(t)$$$$x(0)=9$$$$y(0)=0$$\)

\(Therefore;$$L=\int_0^{2\pi} \sqrt{(9cos(t))^2+(-9sin(t)+18cos(t))^2}dt$$$$=\int_0^{2\pi} 3\sqrt{5} dt$$$$=6\pi\sqrt{5}$$Hence the length of the curve is $6\pi\sqrt{5}$ units.Given:$$x=t^2$$$$y=3(2t+1)^{3/2}$$\)

\(Differentiating with respect to t gives;$$\frac{dx}{dt}=2t$$$$\frac{dy}{dt}=9\sqrt{2t+1}$$$$\frac{dx}{dt}=2\sqrt{\frac{y}{3}}$$$$\frac{dy}{dt}=9\sqrt{2t+1}$$$$x(0)=0$$$$y(0)=3(2(0)+1)^{3/2}=3\sqrt{2}$$\)

\(Therefore;$$L=\int_0^{10} \sqrt{(2\sqrt{\frac{y}{3}})^2+(9\sqrt{2t+1})^2}dt$$$$=\int_0^{10} 3\sqrt{2+2t}dt$$$$=18\sqrt{2}+18ln(3+\sqrt{11})$$\)

\(Hence the length of the curve is $18\sqrt{2}+18ln(3+\sqrt{11})$ units.\)

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We can set up the integral: L = ∫√((4t)² + (3(2t+1)^(1/2))²) dt We will evaluate this integral over the interval 0 ≤ t ≤ 10.

To find the area of the surface generated by revolving the curve x = 2cos(2t), y = 5 + 2sin(2t) about the x-axis, we can use the formula for the surface area of revolution:

A = ∫(2πy√(1 + (dy/dt)²)) dt

First, let's calculate the derivative dy/dt:

dy/dt = 4cos(2t)

Next, let's calculate the integrand, which is 2πy√(1 + (dy/dt)²):

Integrand = 2π(5 + 2sin(2t))√(1 + (4cos(2t))²)

Now, we can set up the integral:

A = ∫(2π(5 + 2sin(2t))√(1 + (4cos(2t))²)) dt

We will evaluate this integral over the interval 0 ≤ t ≤ 2π.

To find the length of the curve given by x = 9cost + 9tsint and y = 9sint - 9tcost, we can use the arc length formula:

L = ∫√((dx/dt)² + (dy/dt)²) dt

First, let's calculate the derivatives dx/dt and dy/dt:

dx/dt = -9sint + 9tcost

dy/dt = 9cost - 9tsint

Next, let's calculate the integrand, which is √((dx/dt)² + (dy/dt)²):

Integrand = √(((-9sint + 9tcost)² + (9cost - 9tsint)²))

Now, we can set up the integral:

L = ∫√(((-9sint + 9tcost)² + (9cost - 9tsint)²)) dt

We will evaluate this integral over the interval 0 ≤ t ≤ 2π.

To find the length of the curve given by x = 2t² and y = 3(2t+1)^(3/2), we can again use the arc length formula:

L = ∫√((dx/dt)² + (dy/dt)²) dt

First, let's calculate the derivatives dx/dt and dy/dt:

dx/dt = 4t

dy/dt = 3(2t+1)^(1/2)

Next, let's calculate the integrand, which is √((dx/dt)² + (dy/dt)²):

Integrand = √((4t)² + (3(2t+1)^(1/2))²)

Now, we can set up the integral:

L = ∫√((4t)² + (3(2t+1)^(1/2))²) dt

We will evaluate this integral over the interval 0 ≤ t ≤ 10.

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Answer:

Step-by-step explanation:

A = 4

R^2 * pi * h = the volume

They both times pi and h so we can cancel that out. If the radius is doubled and it is the square root that is four times.

The equation or system of equations that can be used to determine the number of cats and dogs Bea has in her pet shop is d = 2c - 5 d + 3 = c + 3. We can solve the system of equations using substitution and plug it back into either equation to find the value of d, which is 8 cats and 10 dogs.

The equation or system of equations that can be used to find the number of cats and dogs Bea has in her pet shop is:

d = 2c - 5

d + 3 = c + 3

No, Bea's Pet Shop could not initially have 15 cats and 20 dogs. This is because the equation or system of equations states that the number of dogs is five less than twice the number of cats, which would mean that 15 cats would result in 25 dogs, which is not equal to 20.

To determine algebraically the number of cats and the number of dogs Bea initially had in her pet shop, we can use the equation or system of equations that we previously created.

d = 2c - 5

d + 3 = c + 3

We can solve the system of equations using substitution:

d = 2c - 5

d + 3 = c + 3

d + 3 = c + 3

d = c + 3

2c - 5 = c + 3

2c = c + 8

c = 8

Once we determine the value of c, we can plug it back into either equation to find the value of d:

d = 2(8) - 5

d = 15 - 5

d = 10

Therefore, Bea initially had 8 cats and 10 dogs in her pet shop.

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The complete question is: At Bea's Pet Shop, the number of dogs, d, is initially five less than twice the number of cats, c. If she decides to add three more of each, the ratio of cats to dogs will be – Write an equation or system of equations that can be used to find the number of cats and dogs Bea has in her pet shop. Could Bea's Pet Shop initially have 15 cats and 20 dogs? Explain your reasoning. Determine algebraically the number of cats and the number of dogs Bea initially had in her pet shop.​

Answer:

78kg

Step-by-step explanation:

76×5= 380kg

380-72-74-75-81= 78kg

Answer:

that answer is A plusjsh

Considering the given box plots, we have that:

It is a plot that focuses the interquartile range of the population, which is the difference between the third and the first quartile, but gives a five number summary of the population, composed by these following measures.

Hence, for class A, we have that:

Then:

Hence, for class B, we have that:

Then:

Hence the correct options are given as follows:

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Answer:

The answer is 245 tickets.

Step-by-step explanation:

Multiply 49 times 4 = 196

When you get your answer add 49

Then you'll get the total

Answer: 245 tickets